Third dimension pop up generation from a two-dimensional transformed image display

• US 4,841,292 A
• Filed: 08/11/1986
• Issued: 06/20/1989
• Est. Priority Date: 08/11/1986
• Status: Expired due to Fees

• Current Assignee: Alliedsignal Inc. (Honeywell International Inc.)
• Original Assignee: Alliedsignal Inc. (Honeywell International Inc.)
• Inventors: Zeno, John R.
• Primary Examiner(s): Blum, Theodore M.
• Assistant Examiner(s): Gregory, Bernarr Earl
• Application Number:
  US06/895,065
• Time in Patent Office: 1,044 Days
• Field of Search: 340/736, 340/723, 340/724, 340/729, 340/747, 340/799, 340/793, 342/185, 342/180, 358/2, 358/3, 358/89, 358/90, 358/91, 358/92, 358/88, 364/522
• US Class Current: 345/419
• CPC Class Codes: G06F 17/11 for solving equations , e.g. nonlinear equations, general mathematical optimization problems optimization specially adapted for a specific administrative, business or logistic context G06Q10/04
• CPC Class Codes: G06T 15/10 Geometric effects
• CPC Class Codes: G06T 9/001 Model-based coding, e.g. wire frame
• CPC Class Codes: G09G 1/06 using single beam tubes G09G1/26, G09G1/28 take precedence, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows G09G1/28 takes precedence; stereoscopic TV-systems, details thereof H04N13/00; oscilloscopes for three-dimensional representation G01R13/206; vectorscopes G01R13/208

Abstract

A bit map image is stored as a two-dimensional array with z axis set arbitrarily at unity. Total rotation transform and screen projection is then treated as a lumped equation due to multiplicative associativity so long as only one variable "V" is included in each lumped equation. The z-data (stored elevation values corresponding to each bit map x/y coordinate) is re-inserted as a later operation after the image has been partially transformed and projected.

Full yaw, pitch, and translations from virtually any perspective viewpoint may be projected onto a multiplicity of screen shapes (conical, spherical, flat, etc.), with z data being inserted into a final output.

Claims

1. Method of providing an image on an electronic display, characterized by:

(a) encoding the image as a series of data elements corresponding to coordinate locations;

(b) storing the data elements in a first memory;

(c) generating a first scan pattern;

(d) selecting a scan transformation;

(e) generating a secondary scan pattern by modulating the first scan pattern;

(f) obtaining the data elements corresponding to the secondary scan pattern from the first memory; and

(g) displacing the secondary scan pattern to generate representations of third dimensional image features by modulating the secondary scan pattern with predeterminted bits of said data elements to thereby provide an image signal showing displacement from the secondary scan pattern for display on a display surface.

2. Method as described in claim 1 further characterized by:

storing said secondary pattern in a second memory for subsequent readout.

3. Method as described in claim 2, further characterized by:

the readout of said secondary pattern being accomplished by said reading of the scan pattern; and

said reading effecting a raster scan of the secondary scan pattern.

4. Method as described in claim 3, further characterized by:

the modulation of the secondary scan pattern displacing the display from the secondary scan pattern to provide representation of third dimensional features on a two directional display medium in which the third dimensional features are displaced from the secondary display pattern prior to displacement.